Is copy of Perm approval necessary for H1b extension

[ravisettivari]

Hi,

I am planning to apply for H1b extension from Company B . My perm and I-140 has been approved for Company A. I have a copy of I-140 approval from Company A but don't have a copy of Perm approval. Is copy of I-140 approval enough for H1b extension for Company B or Should I have copy of perm approval also. Please confirm. Thank you.

Regards,
Ravi S.

[DMX17]

I-140 copy (or even the receipt number) should work.

[ravisettivari]

Thank you.